Kua Aina Sandwich Shop serves Hawaiian-style burgers and sandwiches on the fifth floor of the Marunouchi Building near Tokyo Station. The avocado burger and the thick cheeseburger are the signature items, served with thin, crisp fries as a set. Orders and payment are made at the counter first, then you take a number and sit, with indoor seats, a terrace, and shared benches where you can eat while looking at Tokyo Station. Lines form at weekend lunch and on regular visits, so the wait for food can be long.